Shakira will let her fans help pick a different opening act for each city on her tour next year. The Colombian superstar will allow artists to upload videos of performances to her Web site when the “Opening Act” contest starts. Fans will vote for the finalists, and winners will be chosen by Shakira’s team. Sean Wolfington, her digital-business partner, told us, “The artists will open for Shakira live in big cities and virtually through a video performance in smaller markets. There are a lot of talented artists, and Shakira wants to help them by giving them part of her stage.”